Unidentified shortwave radio transmission, recorded in N. Central Texas, evening of June 2, 2008 (0130-0150 UTC, 6/3/08 world time/date), 7575 kHz. In AM mode musical programming similar to Voice of Russia. Underneath in SSB, CW, data and voice. Spanish language voice 7575 kHz USB. Unable to pinpoint frequency for CW/data, seemed to be 7576.5 kHz.
Summary of 18 minute, 58 second audio file:
00:00-04:33 - Music in AM mode, occasional data tones heard underneath.
04:34 - Switched to narrow LSB, narrow DSP audio filter.
04:38 - A few seconds of CW, followed by rapid garbled voice.
Several minutes of occasional tones, garbled voice, tuning around, switching LSB/USB, adjusting filters. Music in AM mode no longer audible, or discontinued.
10:41 - At 7575 USB, male voice, clear Spanish language phrase, brief, followed by more tones.
15:08 - CW
15:49-15:54 - 7575 USB, same male voice, clear rapidly spoken Spanish language phrase, sounds like "Buena, buena, por que (several words unclear), buena."
A few minutes of barely audible speech.
18:09 - Faint but audible, two words spoken by what sounds like different Spanish language male.